When we talk about V2X, we are referring to the exchange of information between vehicles (V2V) or between the vehicle and its environment (vehicle to infrastructure, V2I). The information may indicate that the driver behind you is about to overtake you or that a person is approaching the crossing just ahead of you. Information about a nearby accident might help to redirect traffic to avoid a traffic jam. It is a way to make your life as a driver easier and more secure.
The environment will also benefit from this new technology: Optimized traffic flow as a result of assistance for overtaking maneuvers, regulated traffic lights, street signage, and intersection alerts will improve fuel consumption and reduce CO2 emissions.
And last but not least, the technology will result in lower costs for traffic management and optimized government budgets.
The challenges of V2X include car positioning accuracy and security. The detection of pedestrians and cyclists also still need to be refined. And different regulations between geographical regions must be considered to make V2X a success story.
The underlying communication technology enabling V2X is based on IEEE 802.11p, which defines enhancements to traditional Wi‑Fi, optimizing for low‑latency, non‑line‑of‑sight, and long‑distance connectivity.
V2X incorporates a sophisticated security and verification framework to keep away malicious attackers while at the same time coping with the demanding latency constraints demanded by the applications of interest. The UBX‑P3 chip and the VERA‑P1 module are u‑blox products serving V2X requirements. The automotive grade V2X chip and module for infrastructure and vehicles are compliant to WAVE and ETSI ITS standards for operation in the USA and Europe. Concurrent dual channel communication and single‑channel 802.11p diversity operation works at communication ranges of more than 1 km.